The MGS V positiion vis-a-vis XB one is meaningless this far out from launch. The PS fanbase is obviously larger and pays a lot more attention to MGS news. And let's not foget the last numbered MGS was 100% exclusive to PS3. As buzz builds for the game I imagine the Xb one version will break into the top 50 in the final weeks. Or the top 100 at least.

FF Type 0, on the other hand, is a different matter. 10 days from launch and not looking at all like getting into the top 100. Pretty much suggests FF fans have left team Xbox. If you look at the FF XIII numbers tyhe ration between PS3 and 360 started at a not too shabby ~2.5:1, then ballooned to almost 4:1 and ended up at about 4.5:1 with Lightning Returns, even in the US the franchise ended with >2:1 to PS3. Given the install base situation now we'll probably be looking at global ratio of 7 or 8:1, and in the US possibly as much as 4:1. I think with MGS V situation, esp with Ground Zeroes preparing the ground, we're likely to see a global ratio of 3 or 4:1 and a US ratio more like 2:1, or possibly less.